Your kidding me right ? Your obviously a staunch democrat supporter with a strong unconscious bias that distorts your perception of reality.
Let me outline it in simple terms. Go back and observe the graphs.
Clearly Republican administrations inherit governments with democrat created fiscal time bombs. Lets look at Mr Clinton. It is obvious from the graphs that Mr Clinton created a reckless spending culture within the U.S governmental bodies. But the American people are extremely intelligent, and were able to stop Clinton's deceptive agenda. Imagine how much worse it would have been if the Democrats were elected for a third term!! Perhaps the data would show that the massive government spending programs implemented would start to plunge America into a massive debt! But no, Americans are much to smart to allow this. Instead they would rather reinstate a fiscally responsible Republican administration to uncover the Democrat induced mess and restore America to strong financial standing.
So please, I know facts can be hard to deal with. Especially these ones. But take a deep breath and you like me will realize the solution to this mess:
Destroy the Democrats
At any cost
So the reason the Democrats are at fault is because they generally leave the budget in better shape than they left it, forcing the Republicans to cut taxes and overspend their way into debt, like the way a trophy wife with an enabling husband becomes a shopaholic.